We look at the division of 17830850 by 120 
The aim is to understand the frequency of 120 in 17830850.

On to step 1:
1 divided by 120 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 120

Advancing to step 2:
17 divided by 120 is 0 with a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 120

Going ahead to step 3:
When dividing 178 by 120, we get 1 with a remainder of 58.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 120 from 178, we get 58.
Take the next digit (3) from the dividend and append it to 58, then repeat: 583 / 120

Step 4:
120 goes into 583 4 times with a remainder of 103.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 103 after subtracting 480 from 583.
Grab the next digit (0) from the dividend, add it to 103, then carry on: 1030 / 120

Step 5:
The number 120 fits into 1030 8 times, leaving a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 148.0
Deduct 960 from 1030 and we're left with 70.
Take the next digit (8) from the dividend and append it to 70, then repeat: 708 / 120

Advancing to step 6:
If we divide 708 by 120, we get 5 and a remainder of 108.
Write down 5 as next digit of the result. 
Result so far: 1485.0
Deduct 600 from 708 and we're left with 108.
Grab the next digit (5) from the dividend, add it to 108, then carry on: 1085 / 120

Let's proceed to step 7:
120 goes into 1085 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 14859.0
Deduct 1080 from 1085 and we're left with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 120

Let's proceed to step 8:
If we divide 50 by 120, we get 0 and a remainder of 50.
The next digit of our result is 0. 
Result so far: 148590.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
When dividing 500 by 120, we get 4 with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 148590.4
The remainder is 20 after subtracting 480 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
200 divided by 120 is 1 with a remainder of 80.
The next digit of our result is 1. 
Result so far: 148590.41
If we take 120 away from 200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 11:
The number 120 fits into 800 6 times, leaving a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 148590.416
Subtract 720 from 800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
800 divided by 120 is 6 with a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 148590.4166
Subtract 720 from 800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 148590.4166 with a remainder of 0.0008.